I bought my wife a 2005 standard mini with stock 15" wheels & tires. On a smooth road at 20 mph we feel a slight vibration. It gets faster as the speed picks up, but then at highway speeds we don't really notice the vibration. The car has 33K miles on it. I assume it could be a bad tire, or imbalanced wheel, but I am suprised that the time we feel it most is at relatively slow speeds. Any other things can cause this?

Thanks. Rob.

 

sounds like wheel/tire balance

 

Sometimes a CV joint will act up at lower speed and even out at higher speeds. This doesn't really sound like a CV to me though.